this post was submitted on 20 May 2024
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Antarctica is definitely not Mercator there!
And finding a good projection for the entirety of Asia would be difficult.
Now, using Mercator Russia in the OP image with Africa.... But I've already complained about that in two other crossposts ;-)
I'll give you the point on Antarctica, but using multiple different projections is somehow even worse imho
Any equal area projection recentered for each continent would work.
Recentered is the thing.
I've often wished map apps would recenter the Mercator projection for wherever you are in the world. So you could zoom out on e.g. Russia and see the world map as if the 'equator' were through Russia and the 'poles' at ... somewhere in the North Atlantic and South Indian Ocean?
Bonus points if you can rotate too
I volunteer to implement the backend for this, if someone else will do the frontend. It should be easy enough to do a spherical rotation before whatever data gets passed to the projection math.
If you want an azimuthal equidistant projection centered somewhere, this website already exists, but that doesn't help us here.